Electromagnetic proportional directional flow control valve with pressure compensation

摘要

A pressure compensated electromagnetic proportional directional flow control valve (1) of the present invention integrally includes: an electromagnetic proportional directional flow control valve (2) configured to be driven by a solenoid (10,11); and a pressure compensated valve (3) configured to carry out pressure compensation of a flow rate controlled by the electromagnetic proportional directional flow control valve. A pressure compensation spool (7) moves so as to balance forces of a spring (8,9), a first pressure chamber, and a second pressure chamber. With this, the pressure compensation for maintaining a constant pressure difference between an upstream side and a downstream side of a first variable aperture can be carried out, and a surplus liquid of a liquid flowing from a liquid-pressure supply port to a derivation port can flow out from a branch port to outside.